KR20160032268A - Transmission power modulation to facilitate in-device coexistence between wireless communication technologies - Google Patents

Abstract

A method is provided for modulating transmit power to enable intra-device coexistence between wireless communication technologies. The method includes determining a scheduled time period during which data is received by the device via the first wireless communication technology. The method includes decreasing the transmit power of transmissions from the device over the second wireless communication technology to a threshold level prior to the scheduled period and for decreasing the transmit power to less than the threshold level for the scheduled period And a step of controlling the display device. The method may further include, after the scheduled period, increasing the transmit power to a level that exceeds the threshold level.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a method and apparatus for modulating transmission power in a wireless communication system,

The embodiments described herein relate generally to wireless communications, and more particularly to transmit power modulation, which enables co-existence within a device between wireless communication technologies.

Many wireless communication devices support a plurality of wireless communication technologies and can communicate through a plurality of wireless communication technologies at the same time. In many cases, wireless communication technologies used by devices use channel bands that may interfere with each other. In such a case, the energy from the band used by one technique may leak into the band used by another technique. This energy leakage increases the noise floor and can cause problems known as desense. In many cases, the desense may have a negative impact on the use of certain channel bands and, in severe cases, may render certain channel bands unusable. Therefore, interference that may cause disassembly causes problems in the coexistence of devices in a plurality of wireless communication technologies.

A particularly troublesome disassembly problem is that while the device is receiving data via a second wireless communication technology called a victim technology, the device may send a transmission via a first wireless communication technique called an aggressor technology Quot; < / RTI > Data reception by victim technology can be compromised by assailant transmissions, especially when the abuser technology uses a relatively high transmit power. In this regard, there may be received packet errors, or even complete deafening, of the victim's technology receiver as a result of interference that may be caused by the abuser technology transmission. For example, transmission of a cellular signal by a device when a Bluetooth signal is received may make the Bluetooth receiver inaudible, which may result in errors in the Bluetooth connection and, in some cases, complete loss.

Some embodiments disclosed herein reduce the occurrence of channel interference, including adjacent channel interference, blocker interference, out-of-band transmission, and harmonic interference. In this regard, some illustrative embodiments attempt to modulate transmit power of transmissions by assailant wireless technology during data reception via victim technology. Additionally or alternatively, some illustrative embodiments seek to increase the linearity of the power amplifier applied to transmission over the assailant wireless technology during data reception via victim technology. Thus, such embodiments enable co-existence within the device between wireless communication technologies. Devices implementing the various embodiments disclosed herein may experience reduced loss and alteration of received data due to reduced interference, and thus decrease in the occurrence of dissent. In addition, devices that transmit data to devices implementing the embodiments disclosed herein may experience the benefits of reduced data loss and, consequently, reduced data retransmission.

In a first embodiment, a method is provided. The method of the first embodiment includes the steps of: determining a scheduled time period during which data is received by a device via a first wireless communication technology; Decreasing the transmit power of transmissions from the device over the second wireless communication technology to a threshold level prior to the scheduled period and controlling the transmit power such that the transmit power does not exceed the threshold level during the scheduled period ; And after the scheduled period, increasing the transmit power to a level that exceeds the threshold level.

In a second embodiment, an apparatus is provided. The apparatus of the second embodiment may include a first wireless transceiver configured to transmit transmissions via a first wireless communication technology and a processing circuit coupled to the first wireless transceiver. Wherein the processing circuitry determines a scheduled time period during which data is received by a second wireless transceiver through a second wireless communication technology; Decreasing the transmit power of transmissions sent by the first wireless transceiver prior to the scheduled period and controlling the transmit power such that the transmit power does not exceed a threshold level during the scheduled period; And after the scheduled period, increase the transmit power to a level that exceeds the threshold level.

In a third embodiment, a computer program product is provided. The computer program product of the third embodiment may comprise at least one non-volatile computer readable storage medium having stored thereon program code. The program code comprising: program code for determining a scheduled time period during which data is received by a device via a first wireless communication technology; A program for reducing the transmit power of a transmission from the device over a second wireless communication technology to a threshold level prior to the scheduled period and controlling the transmit power such that the transmit power does not exceed the threshold level for the scheduled period of time code; And after the scheduled period, program code for increasing the transmit power to a level that exceeds the threshold level.

In a fourth embodiment, there is provided an apparatus comprising: means for determining a scheduled time period during which data is received by a device via a first wireless communication technology; Means for reducing the transmit power of transmissions from the device over the second wireless communication technology to a threshold level prior to the scheduled period and for controlling the transmit power such that the transmit power does not exceed the threshold level for the scheduled period of time ; And means for increasing the transmit power to a level that exceeds the threshold level after the scheduled time period.

In a fifth embodiment, a method is provided. The method of the fifth embodiment includes the steps of: determining a scheduled time period during which data is received by a device via a first wireless communication technology; The transmission power of the transmission over the second wireless communication technology during the scheduled period so that transmissions from the device over the second wireless communication technology during the scheduled period do not hinder data reception via the first wireless communication technology. Is to be reduced to a threshold level; And a control module for the second wireless communication technology to reduce the transmit power to the threshold level prior to the scheduled time period and to control the transmit power to not exceed the threshold level for the scheduled time period, And transmitting a message including an indication of the scheduled time period to the control module prior to the scheduled time period.

In the sixth embodiment, an apparatus is provided. The apparatus of the sixth embodiment may include a first wireless transceiver configured to receive data via a first wireless communication technology and a processing circuit coupled to the first wireless transceiver. Wherein the processing circuitry determines a scheduled time period during which data is received by the first wireless transceiver; The transmission of the transmission by the second wireless transceiver during the scheduled period so that transmissions by the second wireless transceiver over the second wireless communication technology during the scheduled period do not hinder data reception via the first wireless communication technology; Determine that the power should be reduced to a critical level; Wherein the control module configured to control the second wireless communication technology requests to control the transmit power so as to reduce the transmit power to the threshold level prior to the scheduled time period and not exceed the threshold level for the scheduled time period And send a message including an indication of the scheduled period to the control module.

In a seventh embodiment, a computer program product is provided. The computer program product of the seventh embodiment may include at least one non-volatile computer readable storage medium having stored thereon program code. The program code comprising: program code for determining a scheduled time period during which data is received by a device via a first wireless communication technology; The transmission power of the transmission over the second wireless communication technology during the scheduled period so that transmissions from the device over the second wireless communication technology during the scheduled period do not hinder data reception via the first wireless communication technology. Program code to determine that the threshold value should be reduced to a threshold level; And a control module for the second wireless communication technology to reduce the transmit power to the threshold level prior to the scheduled time period and to control the transmit power to not exceed the threshold level for the scheduled time period, And program code for transmitting a message including an indication of the scheduled time period to the control module prior to the scheduled time period.

In an eighth embodiment, there is provided an apparatus comprising: means for determining a scheduled time period during which data is received by a device via a first wireless communication technology; The transmission power of the transmission over the second wireless communication technology during the scheduled period so that transmissions from the device over the second wireless communication technology during the scheduled period do not hinder data reception via the first wireless communication technology. Means for determining that the threshold value should be reduced to a threshold level; And a control module for the second wireless communication technology to reduce the transmit power to the threshold level prior to the scheduled time period and to control the transmit power to not exceed the threshold level for the scheduled time period, And means for transmitting a message including an indication of the scheduled time period to the control module prior to the scheduled time period.

In a ninth embodiment, a first control circuit for a first wireless communication technology; A second control circuit for a second wireless communication technology; And an interface configured to enable communication between the first control circuit and the second control circuit. Wherein the first control circuit determines a scheduled period of time during which data is received by the device over a first wireless communication technology and the second control circuit determines a transmission power of the transmission over the second wireless communication technique for the scheduled period And to send the message to the second control circuit through the interface to request to reduce it to a threshold level. Wherein the second control circuit is operable to receive the message transmitted by the first control circuit over the interface and to decrease the transmit power to the threshold level prior to the scheduled period in response to the message, And to control the transmit power such that the transmit power does not exceed the threshold level.

In a tenth embodiment, a method is provided. The method of the tenth embodiment includes the steps of: determining a scheduled time period during which data is received by a device via a first wireless communication technology; And adjusting the operating parameters of the power amplifier to increase the linearity of the power amplifier applied to the cellular transmission from the device during the scheduled time period.

In an eleventh embodiment, an apparatus is provided. The apparatus of an eleventh embodiment may include a first wireless transceiver configured to transmit transmissions via a first wireless communication technology and a processing circuit coupled to the first wireless transceiver. Wherein the processing circuitry determines a scheduled time period during which data is received by a second wireless transceiver through a second wireless communication technology; And adjust the operating parameters of the power amplifier to increase the linearity of the power amplifier applied to the cellular transmission from the device during the scheduled time period.

In a twelfth embodiment, a computer program product is provided. The computer program product of the twelfth embodiment may comprise at least one non-volatile computer readable storage medium having stored thereon program code. The program code comprising: program code for determining a scheduled time period during which data is received by a device via a first wireless communication technology; And program code for adjusting operating parameters of the power amplifier to increase the linearity of the power amplifier applied to the cellular transmission from the device during the scheduled time period.

In a thirteenth embodiment, there is provided an apparatus comprising: means for determining a scheduled time period during which data is received by a device via a first wireless communication technology; And means for adjusting operating parameters of the power amplifier to increase the linearity of the power amplifier applied to the cellular transmission from the device during the scheduled time period.

In a fourteenth embodiment, a method is provided. The method of the fourteenth embodiment includes the steps of: determining a scheduled time period during which data is received by a device via a first wireless communication technology; Wherein during the scheduled period the transmission from the device via the second wireless communication technology is applied to the transmission over the second wireless communication technology during the scheduled period so that the transmission from the device does not hinder data reception via the first wireless communication technology Determining that the linearity of the power amplifier should be increased; And a control module for the second wireless communication technology to send a message including an indication of the scheduled period to the control module prior to the scheduled period to request the control module for the second wireless communication technology to increase the linearity of the power amplifier during the scheduled period And transmitting the data.

In a fifteenth embodiment, an apparatus is provided. The apparatus of the fifteenth embodiment may include a first wireless transceiver configured to receive data via a first wireless communication technology and a processing circuit coupled to the first wireless transceiver. Wherein the processing circuitry determines a scheduled time period during which data is received by the first wireless transceiver; Wherein during the scheduled period the transmission from the device via the second wireless communication technology is applied to the transmission over the second wireless communication technology during the scheduled period so that the transmission from the device does not hinder data reception via the first wireless communication technology Determine that the linearity of the power amplifier should be increased; The control module configured to control the second wireless communication technology may be configured to send a message including an indication of the scheduled period to the control module to request the control module to increase the linearity of the power amplifier for the scheduled period of time have.

In a sixteenth embodiment, a computer program product is provided. The computer program product of the sixteenth embodiment may include at least one non-temporary computer-readable storage medium having stored thereon program code. The program code comprising: program code for determining a scheduled time period during which data is received by a device via a first wireless communication technology; Wherein during the scheduled period the transmission from the device via the second wireless communication technology is applied to the transmission over the second wireless communication technology during the scheduled period so that the transmission from the device does not hinder data reception via the first wireless communication technology Program code for determining that the linearity of the power amplifier should be increased; And a control module for the second wireless communication technology to send a message including an indication of the scheduled period to the control module prior to the scheduled period to request the control module for the second wireless communication technology to increase the linearity of the power amplifier during the scheduled period And may include program code for transmitting.

[0073] In a seventeenth embodiment, there is provided a wireless communication system comprising: means for determining a scheduled time period during which data is received by a device via a first wireless communication technology; Wherein during the scheduled period the transmission from the device via the second wireless communication technology is applied to the transmission over the second wireless communication technology during the scheduled period so that the transmission from the device does not hinder data reception via the first wireless communication technology Means for determining that the linearity of the power amplifier should be increased; And a control module for the second wireless communication technology to send a message including an indication of the scheduled period to the control module prior to the scheduled period to request the control module for the second wireless communication technology to increase the linearity of the power amplifier during the scheduled period An apparatus is provided that can include means for transmitting.

In an eighteenth embodiment, a first control circuit for a first wireless communication technology; A second control circuit for a second wireless communication technology; And an interface configured to enable communication between the first control circuit and the second control circuit. Wherein the first control circuitry determines a scheduled period of time during which data is received by the device over a first wireless communication technology and wherein the second control circuitry is operable to determine a period of time during which the power applied to transmission over the second wireless communication technique And to send a message to the second control circuit through the interface to request to increase the linearity of the amplifier. The second control circuit receives the message sent by the first control circuit through the interface and, in response to the message, updates the operating parameter of the power amplifier to increase the linearity of the power amplifier during the scheduled period . ≪ / RTI >

The foregoing summary is provided solely for the purpose of summarizing certain illustrative embodiments in order to provide a basic understanding of some aspects of the present disclosure. Accordingly, the illustrative embodiments described above are merely examples and should not be construed as limiting the scope or spirit of the present disclosure in any way. Other embodiments, aspects and advantages will become apparent from the following detailed description, read in conjunction with the accompanying drawings, which illustrate, by way of example, the principles of the described embodiments.

The described embodiments and their advantages are best understood by reference to the following description taken in conjunction with the accompanying drawings. These drawings are not necessarily drawn to scale and do not limit the invention in any manner whatsoever in form and detail that may be made to the embodiments described by those skilled in the art without departing from the spirit and scope of the described embodiments.
Figure 1 shows a time-domain view of the prior art for intra-device coexistence problems between wireless communication technologies that can be addressed by various exemplary embodiments.
2 shows an example time-domain view of transmit power modulation enabling co-existence within a device between wireless communication technologies in accordance with some illustrative embodiments.
Figure 3 shows an example transmit power waveform according to some example embodiments.
4 shows a block diagram of a mobile communication device according to some exemplary embodiments.
5 illustrates interfaced chipsets configured to enable intra-device coexistence between wireless communication technologies in accordance with some illustrative embodiments.
Figure 6 shows an example system in which some example embodiments may be implemented to enable co-existence within a device between wireless communication technologies.
7 shows a flow diagram according to an example method of performing transmit power modulation to enable intra-device coexistence between wireless communication technologies in accordance with some example embodiments.
FIG. 8 shows a flow diagram according to another example method of performing transmit power modulation to enable intra-device coexistence between wireless communication technologies in accordance with some example embodiments.
Figure 9 shows a flow diagram according to an exemplary method that enables the performance of transmit power modulation to enable intra-device coexistence between wireless communication technologies in accordance with some illustrative embodiments.
Figure 10 shows a flow diagram according to another example method of performing transmit power modulation to enable intra-device coexistence between wireless communication technologies in accordance with some example embodiments.
11 shows examples of current biasing to achieve linearity increase of a power amplifier according to some exemplary embodiments.
12 shows a flow diagram according to an example method of increasing the linearity of a power amplifier to enable co-existence within a device between wireless communication technologies in accordance with some example embodiments.
Figure 13 shows a flow diagram according to another example method of increasing the linearity of a power amplifier to enable co-existence within a device between wireless communication technologies in accordance with some example embodiments.
FIG. 14 shows a flow diagram according to an exemplary method for enabling linearity enhancement of a power amplifier to enable co-existence within a device between wireless communication technologies in accordance with some example embodiments.
15 shows a flow diagram according to another example method of increasing linearity of a power amplifier to enable co-existence within a device between wireless communication technologies in accordance with some example embodiments.
Figure 16 shows a flow diagram according to an example method of increasing the linearity of a power amplifier and performing transmit power modulation to enable intra-device coexistence between wireless communication technologies in accordance with some example embodiments.

In this section, exemplary applications of systems, methods, apparatus, and computer program products according to the present disclosure are described. These examples are provided merely to add context and to aid in understanding the embodiments described. It will therefore be apparent to one of ordinary skill in the art that the embodiments described may be practiced without some or all of these specific details. In other instances, well-known process steps have not been described in detail in order to avoid unnecessarily obscuring the described embodiments. Other applications are possible, and the following examples should not be construed as limiting.

In the following detailed description, reference is made to the accompanying drawings, which form a part hereof, and in which is shown by way of illustration specific embodiments in accordance with the described embodiments. These embodiments are described in sufficient detail to enable those skilled in the art to practice the described embodiments, although of course these examples are not limiting; Accordingly, other embodiments may be utilized and modifications may be made without departing from the spirit and scope of the described embodiments.

Some exemplary embodiments address co-existence issues in devices between wireless communication technologies. More specifically, some illustrative embodiments described further herein deal with situations in which transmissions are sent by the device via the abuser technology while the device must receive data via victim technology. In such situations, the abuser technology transmissions may interfere with the reception of data through the victimization technique, potentially resulting in received data errors, or in extreme cases, even causing the victimization technology receiver to be completely invisible. For example, receipt of the victim's technical data may be interrupted by blocker interference, in which case the victim's technology receiver can capture the high-power signal from the abuser technology transmission, which can desensitize the victim's signal. As another example, receiving victim description data may be interrupted by out-of-band (OOB) transmissions in which case the abuser technology transmission may be in a band adjacent to the nearby victim's technical band, The transmission may leak power into the victim's technical band, thereby increasing the noise floor for receiving the victim's technical data. As another example, victim technology reception can suffer from interference from harmonics, in which case the abuser transmission may cause harmonics from nonlinear behavior to introduce interference power into the victim's technology band. The various illustrative embodiments disclosed herein and further described below can reduce the effects of blocker interference, OOB interference, and harmonic interference.

1 shows a prior art time-domain view of coexistence problems in devices where transmissions are sent via the abuser technology while data is being received by victim description, which can be handled by various exemplary embodiments. In this regard, FIG. 1 illustrates a receiving ("R") message for an abuser technology and victim technology that may be implemented on and / or on a mobile communication device configured to participate in wireless communications via a plurality of wireless communication technologies. And transmission ("T") periods. It can be seen in Figure 1 that the data reception 102 is scheduled to occur between times t ₁ and t ₂ . However, as illustrated, transmission 104 via the abuser technology takes place during a portion of the period between t ₁ and t ₂ . As such, the data reception 102 may be corrupted, as indicated by the cross-hatched pattern on the example of the data reception 102. Similarly, the data reception 106 may also be corrupted because the transmission 108 via the abuser technology overlaps the entire period between t ₃ and t ₄ when the data reception 106 occurs. However, the data reception 114 may proceed without any constraints because the transmission 110 via the abuser description does not overlap the period between t ₅ and t ₆ when the data reception 114 occurs.

Simultaneous transmissions through multiple wireless communication technologies can, in many cases, proceed without disruption to reception via dissense. Thus, for example, overlapping transmissions 110 and 112 may proceed without interference causing damage to both transmissions. Also, in the illustrated scenario illustrated in FIG. 1, the transmit power of transmissions via the abuser technology may be much greater than the transmit power of transmissions through the victim description. Thus, transmissions via the abuser technology may interfere with simultaneous reception through the victim technology, but transmissions via the victim technology may not affect simultaneous reception through the abuser technology. Thus, for example, the transmission 116 via the victim description overlaps the reception 118 via the abuser technology, but the reception 118 may not be hindered by the transmission 116. [

The example illustrated in FIG. 1 illustrates a common problem when devices communicate simultaneously via low power communication technologies that utilize ISM (industrial, scientific, and medical) bands such as cellular communications and Bluetooth. In such scenarios, cellular transmissions may be much stronger than Bluetooth transmissions. Thus, Bluetooth transmissions may not significantly affect cellular reception. However, cellular transmissions can prevent reception of Bluetooth packets.

In many cases, receipts over the victim description may be scheduled, and it may not be possible to shift the scheduled reception intervals around transmissions via the abuser technology. Similarly, the timing of transmissions via the abuser technology may be fixed according to a schedule. For example, in the case where the abuser technology is a cellular communication technology, the timing of cellular transmissions by the device may be set by the cellular base station, which may have no knowledge of the scheduled reception periods for Bluetooth or other potential victimization techniques. have. Thus, collisions between cellular transmissions and victim description reception periods, such as data reception periods 102 and 106 illustrated in the example of FIG. 1, may occur.

Some exemplary embodiments described herein may address the problems illustrated and described with respect to FIG. In this regard, some illustrative embodiments seek to determine a scheduled period of time during which data is received via victimization techniques and to determine the transmission power of the transmission over the duration of the scheduled period so that the transmission power of the transmission over the abuser technology does not exceed the threshold level . The threshold level may be selected so that transmissions through the abuser technology do not interfere with simultaneous data reception via the victimization technique. In this regard, the threshold level may be set so that transmissions via the abuser technology introduce errors into the data received via the victimization technique, prevent the receipt of data via the victimization technique, or otherwise damage data reception through the victimization technique Can be selected. Also, the threshold level may still be a sufficient transmit power level to support successful transmissions via the abuser technology.

In this regard, it may not be necessary to remove the sense energy to protect the data received via the victim technology. Instead, it may be sufficient to reduce the sensing energy below the tolerance threshold, which may be determined by, for example, applicable specifications, packet type, and / or other factors as will be discussed further herein. Also, the presence of the desense is mainly due to the second-order nonlinearity in the abuser technology transmit chain. Therefore, when the sender transmit power is slightly reduced, the unwanted adjacent band power can be significantly reduced (due to the non-linear relationship). Accordingly, a relatively small reduction in the abuser technology transmit power may enable successful reception via victim technology by preventing victim technology dis- cussions that may be caused by blocker interfer- ence and OOB inter- ference.

In some illustrative embodiments, the transmit power of the assailant transmission may be reduced to a threshold level prior to the scheduled period during which data reception should occur via the victim description. After this period, if transmission via the abuser technology is still occurring, the transmit power may again be increased to a level exceeding the threshold level. Accordingly, receipt via victim technology can proceed without being compromised by the assailant transmission, and assailant transmission can also proceed on a schedule.

2 shows an example time-domain view of transmit power modulation enabling co-existence within a device between wireless communication technologies in accordance with some illustrative embodiments. In this regard, FIG. 2 shows an example application of some example embodiments to the example scenario illustrated in FIG. As illustrated in FIG. 2, a threshold level 202 that is less than the maximum transmit power of the abuser technology is defined. The threshold level 202 may be any transmit power level that is still sufficient to support successful transmission by the abuser technology, although the assailant transmission does not interfere with simultaneous data reception via the victim description.

The transmit power of the offender transmission 204 may be reduced to a threshold level 202 prior to a time t ₁ that is scheduled to start reception 206 via the victim description. It will be appreciated that the example of FIG. 2 is provided as an example, not a limitation. In this regard, there is no limit on how long the transmission power is reduced to the threshold level 202 or the transmission power is reduced before t ₁ . Thus, it will be appreciated that the speed and timing of power modulation may vary in different implementations as long as the transmit power is reduced to a threshold level 202 prior to t ₁ .

The transmit power of the offender transmission 204 may be controlled such that it does not exceed the threshold level 202 during receive 206. [ In this regard, the transmit power during receive 206 may be controlled, for example, such that the transmit power remains substantially constant at threshold level 202. [ Alternatively, the transmit power may vary during receive 206, but may be limited to not exceed a threshold level. Since transmission 204 ends before time t ₂ when reception 206 terminates, the transmit power of assailant transmission 204 increases from the time prior to time t ₁ to the end of assailant transmission 204, Can not be exceeded.

Since the offender transmission 208 occurs simultaneously with the data reception 210 the transmission power of the transmission 208 is reduced to the threshold level 202 prior to the time t ₃ being scheduled to start the reception 210 via the victim description . The transmit power of the offender transmission 208 may be controlled such that it does not exceed the threshold level 202 during reception 210. [ The transmit power of the transmission 208 may be increased to a level exceeding the threshold level 202 after t ₄ since the offender transmission 208 continues after time t ₄ when the reception 210 ends. The transmission power is, for example, be increased to the same level as those used before the transmission power is reduced prior to t _3. However, if the transmit power of transmit 208 is increased after t ₃ , it will be appreciated that the transmit power may be increased to any level, including a different level than that used before t ₃ . It will also be appreciated that the example of FIG. 2 is provided as an example, not a limitation. Accordingly, it should be noted that the timing and rate of increase of the transmit power after t ₄ may vary in different implementations.

The offender transmission 212 does not coincide with the victim reception period. Accordingly, the transmit power exceeding the threshold level 202 may be used for the duration of the assailant transmissions 212.

Figure 3 shows an example transmit power waveform according to some example embodiments. In this regard, Figure 3 shows an example modulation of the transmit power of the assailant transmission in response to overlapping receive periods for the victim description in accordance with some example embodiments. For example, the transmit power waveform of FIG. 3 may be applied to the transmit power of the assailant transmissions 208 illustrated in FIG.

As illustrated in FIG. 3, the transmit power may be reduced from the unmodulated power level 302 to the threshold power level 304 prior to time t ₁ , which may coincide with the beginning of the receive period for the victim description. It will be appreciated that the illustration of FIG. 3 is provided as an example, not a limitation. In this regard, there is no limit on how far ahead of t ₁ the transmit power is reduced to the threshold power level 304 or the rate at which the transmit power is reduced. Thus, it will be appreciated that the speed and timing of power modulation may vary in different implementations as long as the transmit power is reduced to a threshold level 304 prior to t ₁ . After a decrease to the threshold power level 304, the transmit power may be controlled such that it does not exceed the threshold power level 304 until after time t ₂ , which may coincide with the end of the receive period for the victim description. After t ₂ , the transmit power may be increased to a level exceeding the threshold power level 304 and returned to, for example, the unmodulated power level 302. It will be appreciated that the timing, speed, and level of transmit power enhancement illustrated in FIG. 3 after t ₂ are illustrated by way of example and not by way of limitation.

Some example embodiments seek to increase the power amplifier linearity in addition to or as an alternative to transmit power modulation to enable co-existence within the device between wireless communication technologies. In this regard, embodiments of the illustrative embodiments are directed to adjusting the operating parameters of the power amplifier to increase the linearity of the power amplifier applied to transmission transmitted via the abuser technology during a scheduled period of time during which data is received by the victim description do. For example, some such exemplary embodiments seek to adjust the bias current applied to the power amplifier to increase linearity. By increasing the linearity of the power amplifier during victim technology reception, victim technology disensus, which can be caused by OOB interference and harmonic interference, can be prevented.

Now that aspects of various embodiments have been introduced, some embodiments are described in further detail. Referring now to FIG. 4, FIG. 4 shows a block diagram of a mobile communication device 400 in accordance with some illustrative embodiments. The mobile communication device 400 may be any device capable of communicating over a plurality of wireless communication technologies. By way of example, and not limitation, mobile communication device 400 may be a mobile phone, tablet computing device, laptop computer, or other computing device adapted to communicate via a plurality of wireless communication technologies. It will be appreciated that the components, devices, or elements illustrated and described in connection with FIG. 4 may not be essential and thus some of which may be omitted in certain embodiments. In addition, some embodiments may further include additional or different components, devices, or elements in addition to those illustrated and described with respect to FIG.

In some example embodiments, mobile communication device 400 may include processing circuitry 410 that is configurable to perform actions in accordance with one or more illustrative embodiments disclosed herein. In this regard, the processing circuitry 410 may be configured to perform and / or control one or more functions of the mobile communication device 400 in accordance with various illustrative embodiments, May provide means for performing the functions of the mobile communication device 400 according to the invention. Processing circuitry 410 may be configured to perform data processing, application execution, and / or other processing and management services in accordance with one or more illustrative embodiments. In some embodiments, mobile communication device 400 or portion (s) or component (s), e.g., processing circuitry 410, may include one or more chips, or one or more chipsets. Thus, the processing circuitry 410 and / or one or more additional components of the mobile communication device 400 may, in some cases, be configured to implement embodiments in a single chip or chipset.

In some example embodiments, the processing circuitry 410 may include a processor 412 and, in some embodiments, such as illustrated in FIG. 4, may further include a memory 414. The processing circuitry 410 may communicate with or otherwise control the abuser technology transceiver 416, the victim technology transceiver 418, the abuser technology control module 420, and / or the victim technology control module 422.

The processor 412 may be implemented in various forms. For example, the processor 412 may be implemented as a microprocessor, a coprocessor, a controller, or a variety of integrated circuits, including integrated circuits such as, for example, application specific integrated circuits (ASICs), field programmable gate arrays May be implemented as various processing means such as other computing or processing devices. Although illustrated as a single processor, it will be appreciated that the processor 412 may comprise a plurality of processors. A plurality of processors may communicate and interact with one another and may be collectively configured to perform one or more functions of the mobile communication device 400 described herein. In some example embodiments, the processor 412 may be configured to execute instructions that may be stored in the memory 414 or otherwise accessible to the processor 412. Accordingly, whether constituted by hardware or a combination of hardware and software, the processor 412 is suitably configured and can perform tasks according to various embodiments.

In some example embodiments, the memory 414 may include one or more memory devices. The memory 414 may comprise fixed and / or removable memory devices. In some embodiments, the memory 414 may provide a non-volatile computer-readable storage medium that can store computer program instructions that may be executed by the processor 412. In this regard, the memory 414 is configured to store information, data, applications, commands, and / or the like that allow the mobile communication device 400 to perform various functions in accordance with one or more illustrative embodiments . In some embodiments, the memory 414 may be coupled to the processor 412, the assailant technology transceiver 416, the victim technology transceiver 418 (e.g., via the bus) to convey information between the components of the mobile communication device 400, ), The abuser technology control module 420, or the victim technology control module 422.

The mobile communication device 400 may further include a plurality of transceivers. Each such transceiver may be configured to allow the mobile communication device 400 to communicate via a particular wireless communication technology. In the example of FIG. 4, the abuser technology transceiver 416 and the victim technology transceiver 418 are illustrated. The adversary technology transceiver 416 and the victim technology transceiver 418 may each support any wireless communication technology. Transmissions via the assailant technology supported by the assailant technology transceiver 416 at power levels exceeding the defined threshold levels in accordance with various embodiments overlapping data reception via victim technology supported by victim technology transceiver 418 It can affect data reception through victim technology. In some illustrative embodiments, the abuser technology transceiver 416 may be a cellular transceiver. For example, the assailant technology transceiver 416 may be implemented in a mobile communication system such as Long Term Evolution (LTE) cellular communication technology, Universal Mobile Telecommunications System (UMTS) cellular communication technology, Global System for Mobile Communications (GSM) cellular communication technology, Code Division Multiple Access ) Cellular communication technology, or CDMA 2000 cellular communication technology, and / or the like. In some illustrative embodiments, the victim technology transceiver may be a communications technology that utilizes ISM bands such as Bluetooth, ZigBee, or other wireless personal area network (PAN) technologies; Wi-Fi or wireless LAN (local area network) communication technology; Or a transceiver that supports other wireless communication technologies that utilize the ISM band. It will be appreciated, however, that embodiments are not limited to enabling cellular and ISM band coexistence, as some embodiments may enable co-existence within the device between any two heterogeneous wireless communication technologies. For example, in some embodiments, the abuser technology transceiver 416 may support a first cellular communication technology and the victim technology transceiver 418 may support a second cellular communication technology. As another alternative example, in some embodiments, the abuser technology transceiver 416 may support a first wireless communication technology that uses the ISM band and the victim technology transceiver 418 may support a second wireless communication technology that utilizes the ISM band .

The mobile communication device 400 may further include an abuser technology control module 420 that may be configured to interface with and / or otherwise control its operation with the abuser technology transceiver 416. [ The assailant technology control module 420 may be embodied in computer readable program code stored in a circuit, hardware, computer readable medium (e.g., memory 414) and executed by a processing device (e.g., processor 412) Such as a computer program product, or any combination thereof. In some embodiments, the processor 412 (or the processing circuitry 410) may include or otherwise control the assailant technology control module 420.

The mobile communication device 400 may additionally include a victim technology control module 422, which may be configured to interface with and / or otherwise control its operation with the victim technology transceiver 418. Victim technology control module 422 may be stored in circuitry, hardware, computer readable media (e.g., memory 414), and may be embodied in computer readable program code (e.g., Such as a computer program product, or any combination thereof. In some embodiments, processor 412 (or processing circuitry 410) may include, or otherwise control, victim technology control module 422.

In some illustrative embodiments, the assailant technology control module 420 and the victim technology control module 422 may be configured to communicate with each other via the interface 424. In this regard, the interface 424 may be used by the assailant technology control module 420 to reduce the transmit power of transmissions through the assailant transceiver 416 and / or to increase the linearity of the power amplifier (s) The victim technology transceiver 418 may send a message to the victim technology transceiver 418 that may include an indication of the scheduled time period during which the data is received by the victim technology transceiver 418, To be transmitted to the control module. In some exemplary embodiments, the interface 424 may be a direct interface between the assailant technology control module 420 and the victim technology control module 422. However, it will be understood that the embodiments are not so limited. In this regard, the interface 424 may be an interface with one or more other modules or components of the mobile communication device 400 (including potentially one or more modules or components not illustrated in FIG. 4) . For example, the interface 424 may indirectly interface with the assailant technology control module 420 and the victim technology control module 422 via the processing circuitry 410. In some illustrative embodiments where the victim technology is Bluetooth, the interface 424 may be implemented as a Wireless Coexistence Interface 2 (WCI-2) interface, which may include a period during which data is received via victim technology in accordance with one or more embodiments May be extended to support a message from the victim technology control module 422 to the assailant technology control module 420,

As discussed, in some exemplary embodiments, the components illustrated in FIG. 4 may form one or more chipsets. FIG. 5 shows interfaced chipsets configured to enable intra-device coexistence of wireless communication technologies in accordance with some such exemplary embodiments. 5, the assailant technology chipset 502 may include a assailant technology transceiver 504, an assailant technology control module 506, and an interface component 508. The assailant technology transceiver 504 may be, for example, an embodiment of the assailant technology transceiver 416. The assailant technology control module 506 may be, for example, an embodiment of the assailant technology control module 420. The interface component 508 may enable the combination of the assailant technology chipset 502 and the victim technology chipset 512 via the interface 520 between the assailant technology chipset 502 and the victim technology chipset 512. The interface 520 may be, for example, an embodiment of the interface 424. The offender technology chipset 502 may be a chipset configured to support communications over a particular wireless communication technology and may be implemented on or otherwise operably connected to a computing device such as the mobile communication device 400, Allowing the device to engage in wireless communication via a wireless communication technology supported by the abusive technology chipset 502. [ Thus, for example, in embodiments where the assailant technology chipset 502 includes a cellular chipset, the assailant technology chipset 502 may allow the device to participate in cellular communications when implemented on the device.

Victim technology chipset 512 may include victim technology transceiver 514, victim technology control module 516, and interface component 518. Victim technology transceiver 514 may be, for example, an embodiment of victim technology transceiver 418. Victim technology control module 516 may be, for example, an embodiment of victim technology control module 422. [ The interface component 518 may enable the combination of the victim technology chipset 512 and the assertor technology chipset 502 via the interface 520. The victim technology chipset 512 may be a chipset configured to support communication over a particular wireless communication technology and may be implemented on or otherwise operatively coupled to a computing device such as the mobile communication device 400 to enable computing Allowing the device to engage in wireless communication via a wireless communication technology supported by the victim technology chipset 512. Thus, for example, in embodiments where the victim technology chipset 512 includes a Bluetooth chipset, the victim technology chipset 512 may enable the device to participate in Bluetooth communication when implemented on the device.

It will be appreciated that other embodiments than the embodiments in the individual chipsets for the abuser technology and victim technology are contemplated within the scope of the present disclosure. For example, in some illustrative embodiments, both the abuser technology and the victim technology may be supported by the same chip or chipset. In such embodiments, both the abuser technology control module 420 and the victim technology control module 422 may be co-located on a single chip or chipset. Thus, for example, some illustrative embodiments may be implemented on a single chip or chipset configured to provide both cellular and Bluetooth communication capabilities.

FIG. 6 shows an example system 600 in which some example embodiments may be implemented to enable co-existence within a device between wireless communication technologies. The system 600 may include a mobile communication device 602, which may be an example of a mobile communication device 402, for example. In some illustrative embodiments, mobile communication device 602 may include a victim technology chipset 502 and a victim technology chipset 512. The mobile communication device 602 may be configured to participate in cellular communications that may be supported by a base transceiver station 604. [ For example, the mobile communication device 602 may be a mobile communication device such as an LTE (Long Term Evolution) cellular communication technology, a Universal Mobile Telecommunications System (UMTS) cellular communication technology, a Global System for Mobile Communications ) Cellular communication technology, or CDMA 2000 cellular communication technology, and / or other cellular communication technology. The mobile communication device 602 may also be configured to engage in communication via ISM band technology. Thus, for example, the mobile communication device 602 may participate in wireless communication with the device 608 via the ISM band network 606. For example, in embodiments where the ISM band network 606 is a Bluetooth network, the device 608 may be a Bluetooth headset or other Bluetooth device that may be interfaced with the mobile communication device.

In the context of system 600, various embodiments, including at least some of the embodiments described herein below, may be implemented on mobile communication device 602 to enable mobile communication device 602 to communicate with an ISM band network Via the ISM band technology, by cellular transmissions sent by the mobile communication device 602 to the base transceiver station 604 during periods of time that are scheduled to receive data transmitted by the device 608 via the base station transceiver 606 Lt; RTI ID = 0.0 > the < / RTI > transmission of the cellular transmissions. Additionally or alternatively, at least some of the embodiments described herein below may be implemented on a mobile communication device 602 such that a mobile communication device 602 is capable of communicating over an ISM band network 606 by a device 608 Applied to the cellular transmissions so that the data reception through the ISM band technology is not affected by cellular transmissions sent by the mobile communication device 602 to the base transceiver station 604 during the periods scheduled to receive the data Lt; RTI ID = 0.0 > (s) < / RTI > However, it will be appreciated that the system 600 is provided by way of example only. In this regard, as described above, some exemplary embodiments enable wireless communication technology coexistence scenarios in devices other than cellular and ISM band coexistence.

Having described exemplary devices and components that may implement the various embodiments disclosed herein and exemplary systems in which some example embodiments may be implemented, some example embodiments may be described in connection with FIGS. 4 and 5 Will now be described in further detail with respect to the components being < / RTI > In addition, some illustrative embodiments are described by way of example with reference to the system 600 illustrated in FIG.

The victim technology control module 422 of some illustrative embodiments is configured to determine one or more scheduled intervals during which data is received via victim technology and actions to be taken to reduce interference from transmissions via the abuser technology . In this regard, for example, the victim technology control module 422 of some such exemplary embodiments may be configured to provide one or more scheduled periods of time during which data is received via victim technology and transmission power associated with transmissions via the abuser technology should be reduced . ≪ / RTI > Additionally or alternatively, the victim technology control module 422 of some such illustrative embodiments may be configured such that the linearity of the power amplifier (s) that data is received via victim technology and that can be applied to transmission via the abuser technology should be increased And may be configured to determine one or more scheduled durations. The scheduled periods may be dedicated time slots or other periods that are scheduled for data reception via the victim description. Scheduled periods may include, for example, a mobile communication device 400 and another device with which the mobile communication device 400 may be communicating via victim technology, such as, but not limited to, a device 608, As shown in FIG. In some embodiments, communication via victim technology may involve communication over a synchronous connection using synchronized scheduled time slots. For example, in embodiments where the victim technology is Bluetooth, communication may be through a synchronous connection oriented (SCO) link or an enhanced SCO (eSCO) link with a set of scheduled time slots scheduled for data reception. Thus, the victim technology control module 422 determines a scheduled time slot in which data is received via victim technology based on a known schedule that may be set at link setup, negotiated with another device, and / or the like .

Victim technology control module 422 may also be configured to format a message that includes an indication of the scheduled period (s) over which data is received via victim technology. In this regard, the message may indicate the duration (s) in which the transmit power associated with transmission via the abuser technology should be reduced and / or the linearity of the power amplifier (s) applicable to transmission via the abuser technology should be increased . The indication of the scheduled period may be any information that allows the assailant technology control module 420 to identify the start time and end time of the victim description receive period. By way of non-limiting example, the indication may be an indication of a start time of the receive period, an offset from the current time indicating when the receive period should start, an end time of the receive period, a duration of the receive period, a time slot identifier, and / And other information that allows the abuser technology control module 420 to identify the time period displayed in the message. The victim technology control module 422 may also be configured to send the message to the assailant technology control module 420 via the interface 424. [ In this regard, the message indicates that the assailant technology control module 420 requests to control the transmit power so as to reduce the transmit power to a threshold level prior to the scheduled period (s) and not exceed the threshold level during the scheduled period (s) Lt; / RTI > Additionally or alternatively, the message may be sent to request that the assailant technology control module 422 increase the linearity of the power amplifier (s) that may be applied to the assertor technology transmission during the scheduled period (s).

In some exemplary embodiments, the message may only include a display of a single scheduled time period. In this regard, in such exemplary embodiments, the message may be transmitted to the victim technology control module 422 prior to each scheduled period in which, for example, the perpetrator technology transmit power should be reduced and / or the power amplifier linearity should be increased, Lt; / RTI > Additionally or alternatively, in some illustrative embodiments, the victim technology control module 422 may include a message that includes an indication of a plurality of scheduled durations for which the perpetrator technology transmit power should be reduced and / or the power amplifier linearity should be increased Can be formatted and transmitted. In this regard, the victim technology control module 422 may be aware of a plurality of scheduled durations for which data is received and for which the sender technology transmit power should be reduced and / or the power amplifier linearity should be increased, And send it to the assailant technology control module 420. The assertor technology control module 420 may be configured to send a single message to the assertor technology control module 420, Thus, in such embodiments, processing and signaling overhead can be reduced by using a single message to inform the assertor technology control module 420 of the plurality of scheduled durations. As an example, in some cases, the schedule may be negotiated or allocated during setup of the communication link using victim technology. In such a case, the victim technology control module 422 may send the known scheduling periods to the victim technology control module 420 where the data is received via the victim description and the abuser technology transmit power should be reduced and / or the power amplifier linearity should be increased, Based on the known schedule, during or after the set-up of the victim's technical communication link.

The abuser technology control module 420 may be configured to receive messages sent by the victim technology control module 422 via the interface 424. [ The abuser technology control module 420 may also be configured to determine the scheduled period (s) over which data is received via the victim description based on the indication (s) included in the received message. In response to the message, the assailant technology control module 420 reduces the transmit power of the abuser description transmission, which may be sent by the assertive technology transceiver prior to the scheduled period indicated in the message, to a threshold level, The transmission power can be controlled so as not to exceed. If the transmission via the abuser technology is still in progress after the end of the scheduled period, the abuser technology control module 420 may also be configured to increase the transmission power to a level exceeding the threshold level after the scheduled period.

The reduction and control of the transmit power to enable reception of data over the victim description during the scheduled period may be performed in a manner similar to that illustrated and related to, for example, in FIGS. 2 and 3 . In some example embodiments, where the abuser technology is cellular technology as illustrated in FIG. 6, the reduction and control of transmit power may take into account, for example, the power control loop configuration of the base transceiver station 604.

The threshold level at which the transmit power is reduced may be implementation specific based on the implementation of the mobile communication device 400. In this regard, the threshold level may vary based on the proximity and arrangement of filters, abuser technology transceiver 416, and victim technology transceiver 418 that may be used for victim description and / or for abuser techniques. In some example embodiments, the threshold level may vary based on actual channel conditions, such as specific channel assignments, packet types, usage profiles, use cases, and / or the like. Thus, various factors may be considered to determine the appropriate threshold level for a particular device implementation and channel scenario. In some example embodiments, such as those in which the threshold level depends solely on channel implementation, the threshold level may be set and provided by the device manufacturer, network service provider, or the like. In embodiments where the threshold level may vary based on channel conditions, the assailant technology control module and / or victim technology control module 422 may be configured to calculate a threshold level based on existing channel conditions. Such calculations may additionally affect the proximity and arrangement of filters, the abuser technology transceiver 416 and the victim technology transceiver 418, and / or the threshold levels, which may be used for victim description and / or for abuser techniques Such as other design factors that can be used to design the mobile communication device 400.

Accordingly, it will be appreciated that the actual threshold level may vary depending on implementation and, in some embodiments, may vary based on channel conditions experienced, link configuration, and / or the like. However, regardless of the particular implementation, the threshold level may be a power level at which transmissions through the abuser technology do not interfere with simultaneous data reception via the victimization technique.

The assailant technology control module 420 may be configured to control the transmit power using any of a variety of methods. As an example, in some embodiments, the look-up table may store one or more transmit power curves that specify a power modulation curve for a particular duration duration. The assailant technology control module 420 may thus be configured to retrieve the appropriate modulation curve for a given period of time during which data is received via victim description in such embodiments and apply the modulation curve. Additionally or alternatively, in some exemplary embodiments, a low pass filter may be used to reduce transmit power. As another example, in some embodiments, the abuser technology control module 420 may step down transmit power and, if the transmit power is increased after the end of the victim reception period, Commands. As another example, the assailant technology control module 420 of some embodiments may be configured to utilize the response time of a digitally controlled power source to control transmit power.

In some illustrative embodiments, the transmit power of the abuser technology may be reduced every time data is received via the victim description. Alternatively, in some illustrative embodiments, the transmit power may be selectively reduced such that the transmit power is not reduced for each receive period during which data is received via the victim description. In such embodiments, the victim description control module 422 may selectively determine, via the victim description, whether the transmit power should be reduced for the scheduled period in which data is received. If victim technology control module 422 determines that transmit power should not be reduced for the scheduled time period, victim technology control module 422 sends a message containing an indication of the scheduled time period to technician control module 420 It can be decided not to transmit.

As an example of selective reduction of transmit power for a subset of scheduled periods in which data is received via victim description, victim description control module 422 may be configured to determine whether the data to be received in some illustrative embodiments satisfies the threshold priority criteria Or the like. If the data received in a particular time period does not meet the threshold priority criterion, the victim description control module 422 may determine that the transmit power should not be reduced for that period of time. For example, in some exemplary embodiments, control messages, such as messages related to connection configuration or link management, may be prioritized over other non-control messages. Thus, in such embodiments, if the victim technology control module 422 determines that a control message is received in a certain period of time, the victim technology control module 422 may determine that the transmit power of the perpetrator technology should be reduced for that period of time have. However, if the data received in any period is an uncontrolled message (e.g., a simple data message), then the victim technology control module 422 determines that the uncontrolled message does not satisfy the threshold priority criteria, It can be determined that the transmission power of the mobile station should not be reduced. Control messages may include, for example, but are not limited to, connection settings, connection separation, time slot configuration, power control, adaptive frequency hopping, channel quality driven data rate (CQDDR) Roll switching, roll switching, and / or the like. As another example, the control messages may take security measures, such as, but not limited to, authentication, pairing, link key establishment, encryption configuration, and / or the like. In embodiments where the victim technology is Bluetooth, the control message may include Link Manager Protocol (LMP) messages. If an LMP message is received in a certain period, the transmit power of the abuser description transmission may be reduced. However, the transmission power may not be reduced for reception of data other than LMP messages.

7 shows a flow diagram according to an example method of performing transmit power modulation to enable intra-device coexistence between wireless communication technologies in accordance with some example embodiments. Operation 710 may include determining a scheduled time period over which data is received via the first wireless communication technology. One or more of the processing circuitry 410, the processor 412, the memory 414, the assailant technology control module 420, the victim technology control module 422, the assailant technology chipset 502 and the victim technology chipset 512 , For example, a means for performing operation 710. [ Operation 720 may include reducing the transmit power of a transmission over a second wireless communication technology to a threshold level prior to the scheduled time period. Operation 730 may include controlling the transmit power such that the transmit power does not exceed the threshold level during the scheduled period. Operation 740 may include increasing the transmit power to a level that exceeds the threshold level after a scheduled period of time. One or more of the processing circuitry 410, the processor 412, the memory 414, the abuser technology transceiver 416, the abuser technology control module 420, and the abuser technology chipset 502 may, for example, 720-740). ≪ / RTI >

FIG. 8 shows a flow diagram according to another example method of performing transmit power modulation to enable intra-device coexistence between wireless communication technologies in accordance with some example embodiments. Operation 810 may be performed by a control module for a first wireless communication technology, including an indication of a scheduled period over which data is received via the first wireless communication technology, via an interface (e.g., interface 424) Lt; RTI ID = 0.0 > and / or < / RTI > One or more of the processing circuitry 410, the processor 412, the memory 414, the abuser technology control module 420, and the abuser technology chipset 502 provide a means for performing, for example, operation 810 can do. Operation 820 may include, in response to the message, reducing the transmit power of the transmission over the second wireless communication technology to a threshold level prior to the scheduled time period. Operation 830 may include controlling the transmit power such that the transmit power does not exceed the threshold level during the scheduled period. Operation 840 may include increasing the transmit power to a level that exceeds the threshold level after a scheduled period of time. One or more of the processing circuitry 410, the processor 412, the memory 414, the abuser technology transceiver 416, the abuser technology control module 420, and the abuser technology chipset 502 may, for example, 820-840). ≪ / RTI >

Figure 9 shows a flow diagram according to an exemplary method that enables the performance of transmit power modulation to enable intra-device coexistence between wireless communication technologies in accordance with some illustrative embodiments. Operation 910 may include determining a scheduled time period during which data is received via the first wireless communication technology. Operation 920 may include determining that the transmit power of the transmission over the second wireless communication technology should be reduced to a threshold level during the scheduled period. Operation 930 may be performed such that a control module for the second wireless communication technology (e. G., The abuser technology control module 420 or the abuser technology chipset 502) may reduce the transmit power to a threshold level prior to the scheduled time period. (E.g., via interface 424) a message containing an indication of the period to the control module. One or more of the processing circuitry 410, the processor 412, the memory 414, the victim technology control module 422, and the victim technology chipset 512 may perform, for example, operations 910-930 Means can be provided.

Figure 10 shows a flow diagram according to another example method of performing transmit power modulation to enable intra-device coexistence between wireless communication technologies in accordance with some example embodiments. Operation 1010 may include determining a scheduled time period over which data is received via the first wireless communication technology. Operation 1020 may include determining if the data to be received meets a threshold priority criterion. One or more of the processing circuitry 410, the processor 412, the memory 414, the victim technology control module 422, and the victim technology chipset 512 may perform, for example, operations 1010-1020 Means can be provided.

If the data to be received at operation 1020 is determined to meet a threshold priority criterion, the method may further include one or more of operations 1030-1050. Operation 1030 may include decreasing the transmit power of the transmission over the second wireless communication technology to a threshold level prior to the scheduled period. Operation 1040 may include controlling the transmit power such that the transmit power does not exceed the threshold level during the scheduled period. Operation 1050 may include increasing the transmit power to a level that exceeds the threshold level after a scheduled period of time. One or more of the processing circuitry 410, the processor 412, the memory 414, the abuser technology transceiver 416, the abuser technology control module 420, and the abuser technology chipset 502 may, for example, 1030-1050). ≪ / RTI >

However, if it is determined that the data to be received in operation 1020 does not satisfy the threshold priority criterion, the method may further comprise operation 1060. [ Operation 1060 may include deciding not to reduce the transmit power during the scheduled period. One or more of the processing circuitry 410, the processor 412, the memory 414, the victim technology control module 422, and the victim technology chipset 512 provide means for performing, for example, operation 1060 can do.

In some illustrative embodiments, the assailant technology control module 420 may increase the linearity of the power amplifier (s) applied to the abuser technology transmission during the scheduled period indicated in the message sent by the victim technology control module 422 May be configured to adjust the operating parameters of the power amplifier (s). In such exemplary embodiments, the power amplifier linearity may be increased in addition to or instead of performing transmit power modulation. Adjusting the operating parameters of the power amplifier may include adjusting the bias current that may be applied to the power amplifier, for example, to increase the linearity of the power amplifier.

11 shows examples of current biasing to achieve linearity increase of a power amplifier according to some exemplary embodiments. In this regard, FIG. 11 shows a graph of the output signal for the example input power amplifier input signal for four example bias currents from the relatively lowest bias current 1108 to the relatively highest bias current 1114 Show. For a given bias current, the power amplifier may operate in three predetermined ranges 1102-1106. Range 1102 is a linear range where a relatively low input signal is applied to the power amplifier. Power consumption in range 1102 may be relatively high, but OOB interference for victim technology may be relatively low. Range 1104 may provide relatively low power consumption, but instead OOB interference for victim technology may be a relatively high non-linear range. Range 1106 may be a non-operating range for the example power amplifier. Thus, power amplifier linearity can be increased with the application of a higher bias current, but instead power consumption is greater.

During periods when data is not being received via victim technology in situations where the target transmit power operating point is to be achieved, the example power amplifier of Fig. 11 may be operated to reduce power consumption. In this regard, a bias current as low as possible may be used to meet the target transmit power operating point. For example, a power amplifier can be operated in range 1104 using bias current 1110 during such periods.

In some example embodiments, the bias current may be increased during a scheduled period of time during which data is received via the victim technology to achieve increased power amplifier linearity. In this regard, the OOB delivery mask and / or harmonic energy constraints can be met by reducing the bias current to increase the power amplifier linearity. 11, the power amplifier operates in a range 1102 using a bias current 1112 or a bias current 1114, even though the power consumption is higher during a scheduled period when data is received via the victim technology .

In some illustrative embodiments, adjustment of the bias current may be performed in accordance with the power consumption constraint. Thus, for example, the bias current may not increase to the highest level due to power consumption constraints that may limit the bias current level to prevent excessive power consumption. For example, in situations where the use of bias current 1114 exceeds the power consumption limit, even though greater linearity may be achieved using bias current 1114, bias current 1112 may be used instead of bias current 1114 . In some such exemplary embodiments, the power amplifier may also be operated to ensure that the regulated emission mask is met. Further, in some such exemplary embodiments, the power amplifier may be operated to comply with such constraints as OOB delivery constraints, which may be imposed by a regulatory agency such as the Federal Communications Commission (FCC) .

In some illustrative embodiments, a plurality of power amplifiers, such as a chain of power amplifiers, may be applied to the assertor technology transmission. In such exemplary embodiments, the operating parameters of each of the plurality of power amplifiers may be adjusted to achieve a linearity increase of the plurality of power amplifiers during a scheduled period of time during which data is received via the victim description.

In some example embodiments, the operating parameters of the power amplifier may be adjusted from an initial state, such as a default state, at some time prior to the scheduled period. After the scheduled period, the operating parameters may be returned to the initial state. Thus, using the example of FIG. 11, the bias current can be fed from the bias current 1110 to the bias current 1112 or to the bias current 1114, either prior to, or at the start of the scheduled period, And may be returned to the bias current 1110 at the end of the scheduled period or after the end.

In some illustrative embodiments, power amplifier linearity may be increased over periods during which data is received via victim technology. Alternatively, in some illustrative embodiments, the power amplifier linearity may be selectively increased so that power amplifier linearity is not increased for each receive period during which data is received via the victim description. In such embodiments, victim technology control module 422 may selectively determine whether power amplifier linearity should be increased for a scheduled period of time during which data is received via victim technology. If the victim technology control module 422 determines that the power amplifier linearity should not be increased for the scheduled time period, the victim technology control module 422 sends a message containing an indication of the scheduled time period to the technology control module 420, It can be decided not to transmit it to the mobile terminal.

As an example of a selective increase in power amplifier linearity for a subset of scheduled periods in which data is received via the victim description, the victim technology control module 422 may be configured such that in some illustrative embodiments, Or < / RTI > If the data received in a particular time period does not meet the threshold priority criterion, victim description control module 422 may determine that power amplifier linearity should not be increased for that period of time. For example, in some exemplary embodiments, control messages, such as messages related to connection configuration or link management, may be prioritized over other non-control messages. Thus, in such embodiments, if victim technology control module 422 determines that a control message is received in a certain time period, victim technology control module 422 may determine that power amplifier linearity should be increased for that period of time. However, if the data received in any period is a non-control message (e.g., a simple data message), then the victim technology control module 422 determines that the uncontrolled message does not satisfy the threshold priority criteria, It can be determined that the linearity should not be increased. Control messages may include, for example, but are not limited to, connection settings, connection separation, time slot configuration, power control, adaptive frequency hopping, channel quality driven data rate (CQDDR) Roll switching, roll switching, and / or the like. As another example, the control messages may take security measures, such as, but not limited to, authentication, pairing, link key establishment, encryption configuration, and / or the like. In embodiments where the victim technology is Bluetooth, the control message may include Link Manager Protocol (LMP) messages. If an LMP message is received in any period, the power amplifier linearity can be increased. However, power amplifier linearity may not be increased for reception of data other than LMP messages.

12 shows a flow diagram according to an example method of increasing the linearity of a power amplifier to enable co-existence within a device between wireless communication technologies in accordance with some example embodiments. Operation 1210 may include determining a scheduled time period over which data is received via the first wireless communication technology. One or more of the processing circuitry 410, the processor 412, the memory 414, the assailant technology control module 420, the victim technology control module 422, the assailant technology chipset 502 and the victim technology chipset 512 , For example, a means for performing operation 1210. [ Operation 1220 may include adjusting the operating parameters of the power amplifier to increase the linearity of the power amplifier applied to transmission over the second wireless communication technology during the scheduled period. In some example embodiments, the method of FIG. 12 may further comprise operation 1230, which may include recovering the operating parameters of the power amplifier to a previous state after the end of the scheduled period. In this regard, the operating parameters may be restored to an initial state, such as the default state, used prior to adjustment of operation 1220. [ One or more of the processing circuitry 410, the processor 412, the memory 414, the abuser technology control module 420, and the abuser technology chipset 502 may perform, for example, operations 1220-1230 Means can be provided.

Figure 13 shows a flow diagram according to another example method of increasing the linearity of a power amplifier to enable co-existence within a device between wireless communication technologies in accordance with some example embodiments. Operation 1310 may be performed by a control module for a first wireless communication technology, including an indication of a scheduled period over which data is received via the first wireless communication technology, via an interface (e.g., interface 424) Lt; RTI ID = 0.0 > and / or < / RTI > Operation 1320 may include adjusting the operating parameters of the power amplifier to increase the linearity of the power amplifier applied to transmission over the second wireless communication technology during the scheduled period of time in response to the message. In some illustrative embodiments, the method of FIG. 13 may further comprise an operation 1330, which may include restoring the operating parameters of the power amplifier to a previous state after the end of the scheduled period. In this regard, the operating parameters may be recovered to an initial state, such as the default state, used prior to adjustment of operation 1320. [ One or more of the processing circuitry 410, the processor 412, the memory 414, the assailant technology control module 420, and the assertor technology chipset 502 may perform, for example, operations 1310-1330 Means can be provided.

FIG. 14 shows a flow diagram according to an exemplary method for enabling linearity enhancement of a power amplifier to enable co-existence within a device between wireless communication technologies in accordance with some example embodiments. Operation 1410 may include determining a scheduled time period during which data is received via the first wireless communication technology. Operation 1420 may include determining that the linearity of the power amplifier applied to transmission from the device over the second wireless communication technology during the scheduled period should be increased. Operation 1430 may be performed by a control module (e. G., The assailant technology control module 420 or the assailant chipset 502) for the second wireless communication technology such that the control (E.g., via interface 424) a message that includes an indication of a period in the module. One or more of the processing circuitry 410, the processor 412, the memory 414, the victim technology control module 422, and the victim technology chipset 512 may perform, for example, operations 1410-1430 Means can be provided.

15 shows a flow diagram according to another example method of increasing linearity of a power amplifier to enable co-existence within a device between wireless communication technologies in accordance with some example embodiments. Operation 1510 may include determining a scheduled time period during which data is received via the first wireless communication technology. Operation 1520 may include determining if the data to be received meets a threshold priority criterion. One or more of the processing circuitry 410, the processor 412, the memory 414, the victim technology control module 422, and the victim technology chipset 512 may perform, for example, operations 1510-1520 Means can be provided.

If it is determined that the data to be received in operation 1520 meets the threshold priority criterion, the method may proceed to operation 1530, where the operation is applied to transmission over the second wireless communication technology during the scheduled period And adjusting the operating parameters of the power amplifier to increase the linearity of the power amplifier. In some illustrative embodiments, the method of FIG. 15 may further include operation 1540, which may include restoring the operating parameters of the power amplifier to a previous state after the end of the scheduled period . In this regard, the operating parameters may be restored to an initial state, such as the default state, used prior to adjustment of operation 1530. [ One or more of the processing circuitry 410, the processor 412, the memory 414, the abuser technology transceiver 416, the abuser technology control module 420, and the abuser technology chipset 502 may, for example, 1530-1540). ≪ / RTI >

However, if it is determined that the data to be received at operation 1520 does not meet the threshold priority criterion, the method may proceed to operation 1550 instead of performing operation 1530. [ Operation 1550 may include deciding not to increase the linearity of the power amplifier during the scheduled period.

Figure 16 shows a flow diagram according to an example method of increasing the linearity of a power amplifier and performing transmit power modulation to enable intra-device coexistence between wireless communication technologies in accordance with some example embodiments. Operation 1610 may include determining a scheduled time period during which data is received via the first wireless communication technology. One or more of the processing circuitry 410, the processor 412, the memory 414, the assailant technology control module 420, the victim technology control module 422, the assailant technology chipset 502 and the victim technology chipset 512 For example, to perform operations 1610. In one embodiment, Operation 1620 may include adjusting the operating parameters of the power amplifier to increase the linearity of the power amplifier applied to transmission over the second wireless communication technology during the scheduled period. One or more of the processing circuitry 410, the processor 412, the memory 414, the assailant technology control module 420 and the assertor technology chipset 502 provide a means for performing, for example, can do. Operation 1630 may include reducing this transmit power such that the transmit power of the transmission over the second wireless communication technology during the scheduled period does not exceed the threshold level. One or more of the processing circuitry 410, the processor 412, the memory 414, the abuser technology transceiver 416, the abuser technology control module 420, and the abuser technology chipset 502 may, for example, ). ≪ / RTI >

The various aspects, embodiments, implementations or features of the described embodiments may be used individually or in any combination. Various aspects of the described embodiments may be implemented in software, hardware, or a combination of hardware and software. The described embodiments may also be embodied as computer readable code on a computer readable medium for controlling manufacturing operations or as computer readable code on a computer readable medium for controlling a manufacturing line. The computer readable medium is any data storage device capable of storing data that can be subsequently read by a computer system. Examples of computer-readable media include read-only memory (ROM), random-access memory (RAM), CD-ROM, HDD, DVD, magnetic tape, and optical data storage devices. The computer readable medium may also be distributed to networked computer systems so that the computer readable medium is stored and executed in a distributed manner.

The foregoing description, for purposes of explanation, used specific nomenclature to provide a thorough understanding of the described embodiments. However, it will be apparent to one skilled in the art that the specific details are not required to practice the embodiments described. Accordingly, the foregoing description of specific embodiments is provided for purposes of illustration and description. They are not intended to be exhaustive or to limit the described embodiments to the precise forms disclosed. It will be apparent to those of ordinary skill in the art that many modifications and variations are possible in light of the above teachings.

Claims (20)

As an apparatus,
A first control circuit communicatively coupled to the first wireless transceiver; And
A second control circuit communicatively coupled to the first control circuit and a second wireless transceiver,
Lt; / RTI >
Wherein the first control circuit comprises:
Determine a period during which the first wireless transceiver is scheduled to receive data,
Wherein the second control circuit is configured to send a message to the second control circuit requesting to decrease the transmit power of the second wireless transceiver prior to the period so that the transmit power is below the threshold level for the duration, Device. The method according to claim 1,
Wherein the first wireless transceiver and the second wireless transceiver are configured to communicate over different wireless connections. The method according to claim 1,
And the second control circuit is configured to allow the transmit power of the second wireless transceiver to exceed the threshold level after the period. The method according to claim 1,
Further comprising an interface configured to connect the first control circuit and the second control circuit,
And the first control circuit is configured to send the message to the second control circuit via the interface. The method according to claim 1,
Wherein the transmit power is reduced prior to the predetermined time interval. The method according to claim 1,
Wherein the second control circuit is configured to decrease the transmit power of the second wireless transceiver before and during the period when the data includes a control message. The method according to claim 1,
Wherein the second control circuit is configured to allow the transmit power of the second wireless transceiver to exceed the threshold level for at least a portion of the time period when the data does not contain a control message. The method according to claim 1,
Wherein the first control circuit or the second control circuit is further configured to determine the threshold level using one or more measurements of the communication channel conditions. The method according to claim 1,
Wherein the first control circuit or the second control circuit is further configured to determine the threshold level using a measure of proximity of the first wireless transceiver to the second wireless transceiver. The method according to claim 1,
Wherein the device is implemented within a mobile communication device. A method for controlling transmit power in a wireless device,
Determining a period during which the wireless device is expected to receive data via a first wireless transceiver of the wireless device; And
Decreasing the transmit power below the threshold level such that the transmit power of the second wireless transceiver of the wireless device does not exceed a threshold level,
≪ / RTI > 12. The method of claim 11,
Further comprising allowing the transmit power of the second wireless transceiver to exceed the threshold level for at least a portion of the time period when the data does not include a control message. 12. The method of claim 11,
Further comprising allowing the transmit power of the second wireless transceiver to exceed the threshold level for at least a portion of the time period when the data does not include a connection configuration message or a link management message. 12. The method of claim 11,
Wherein the transmit power of the second wireless transceiver is reduced before the predetermined time interval. 15. The method of claim 14,
After said period of time, allowing said transmit power of said second wireless transceiver to exceed said threshold level. 12. The method of claim 11,
Wherein the threshold level is set by a device manufacturer of the wireless device or a network service provider that provides wireless service to the wireless device via the second wireless transceiver. 18. A non-transitory machine-readable medium storing instructions that, when executed by one or more processors within a wireless device, cause one or more components of the wireless device to perform steps,
The steps,
Determining a duration during which the first wireless transceiver of the wireless device is scheduled to receive data;
Communicating a message to a control module of the wireless device, the message comprising a request to reduce the transmit power before the period so that the transmit power of a second wireless transceiver of the wireless device is below a threshold level for the duration -; And
Reducing the transmit power of the second wireless transceiver prior to the period
≪ / RTI > 18. The method of claim 17,
Wherein the control module reduces the transmit power of the second wireless transceiver using a look-up table that specifies a power modulation curve for use during the time period. 18. The method of claim 17,
Wherein the transmit power of the second wireless transceiver is at least partially reduced by changing a low pass filter of the second wireless transceiver. 18. The method of claim 17,
Wherein the control module controls the transmit power of the second wireless transceiver by adjusting a response time of a digitally controlled power source of the wireless device.

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